Anesthesia, EpiduralAnesthesia, GeneralAnesthesia, ObstetricalAnesthesiaAnesthesia, SpinalAnesthesia, LocalAnesthesia, ConductionSpinal CordAnesthetics, LocalLidocaineAnesthesia, InhalationAnesthesia, IntravenousBupivacaineAnesthetics, CombinedMepivacaineAnesthesia Recovery PeriodAnesthesia, CaudalAdjuvants, AnesthesiaAnesthesia, DentalSpinal Cord InjuriesCesarean SectionAnesthetics, InhalationProcaineMonitoring, IntraoperativeAnalgesia, EpiduralAutonomic Nerve BlockMethyl EthersAnesthetics, IntravenousIsofluraneFentanylPropofolNerve BlockPain, PostoperativeShiveringAnesthesiologyEpidural SpaceEphedrineEtilefrineSkin TemperatureNitrous OxideAnestheticsLumbosacral RegionThoracic VertebraeEpinephrineHalothaneThoraxHorner SyndromeAmidesHemodynamicsPain MeasurementInjections, SpinalAnesthesia, Closed-CircuitAnesthetics, GeneralPregnancyIntraoperative PeriodKetaminePreanesthetic MedicationDihydroergotamineAmbulatory Surgical ProceduresPuerperal DisordersHypothermiaBody Temperature RegulationInjections, EpiduralThiopentalPostoperative ComplicationsMeperidineBlood PressureProspective StudiesAnalgesiaSurgical Procedures, OperativeRitodrineHeart RateAnalgesics, OpioidDouble-Blind MethodTime FactorsLabor, ObstetricSpinal NervesSensationLabor Stage, FirstSpinal Cord DiseasesPentobarbitalHypotensionAnalgesia, ObstetricalAnesthetics, DissociativeSpinal Nerve RootsEnfluraneXylazineIntubation, IntratrachealAnesthesia Department, HospitalConscious SedationIntraoperative ComplicationsElectroencephalographyLumbosacral PlexusAnesthesia, IntratrachealSpinal Cord NeoplasmsSpinal CanalSpinal DiseasesSpinal Cord CompressionPostoperative PeriodPiroxicam